R5106N SERIES
AEC-Q100 Compliant
Microprocessor Supervisory Circuit with Inhibit pin for Automotive Applications
NO. EC-169-180222
OUTLINE
The R5106N is a microprocessor supervisory circuit and has high accuracy and ultra low supply current voltage
detector with built-in delay circuit and watchdog timer. When the supply voltage is down across the threshold,
or the watchdog timer does not detect the system clock from the microprocessor, the reset output is generated.
The voltage detector circuit is used for the system reset, etc. The detector threshold is fixed internally, and the
accuracy is ±1.0%. The released delay time (Power-on Reset Delay) circuit is built-in, and output delay time is
adjustable with an external capacitor, and the accuracy is ±16% (R5106Nxx1x-TR-JE:
−40°C
≤ Ta ≤ 105°C)
(1)
.
When the supply voltage becomes higher than the released voltage, the reset state will be maintained during
the delay time. The output type of the reset is selectable, Nch open-drain, or CMOS.
The time out period of the watchdog timer can be also set with an external capacitor, and the accuracy is
±33%
(1)
. There is a function to stop supervising clock by the watchdog timer (INH function).
The package of R5106N is SOT-23-6.
FEATURES
•
Supply Current (I
SS
) ....................................................... Typ. 11µA
•
Operating Voltage Range (V
DD
)..................................... 0.9V to 6.0V
< Voltage Detector Part >
•
Detector Threshold Range ............................................ 1.5V to 5.5V (0.1V steps)
•
Detector Threshold Accuracy ........................................
±1.0%
•
Detector Threshold Temperature Coefficient ................ Typ.
±100
ppm/°C
R5106Nxx1x-TR-AE:
−40°C
≤ Ta ≤ 125°C
R5106Nxx1x-TR-JE:
−40°C
≤ Ta ≤ 105°C
(1)
.......................
±18%
(R5106Nxx1x-TR-AE:
−40°C
≤ Ta ≤ 125°C)
•
Power-on Reset Delay Time accuracy
±16%
(R5106Nxx1x-TR-JE:
−40°C
≤ Ta ≤ 105°C)
•
Power-on reset delay time of the voltage detector ....... Typ. 370ms with an external capacitor : 0.1µF
< Watchdog Timer Part >
•
Built-in a watchdog timer's time out period accuracy
(1)
. ±33%
R5106Nxx1x-TR-AE:
−40°C
≤ Ta ≤ 125°C
R5106Nxx1x-TR-JE:
−40°C
≤ Ta ≤ 105°C
•
Timeout period for watchdog timer ............................... Typ. 310ms with an external capacitor : 0.1µF
•
Reset timer for watchdog timer ..................................... Typ. 34ms with an external capacitor : 0.1µF
•
With Inhibit pin (INH) ..................................................... Able to stop watchdog timer
•
Package ........................................................................ SOT-23-6
APPLICATIONS
•
Voltage monitoring for electronic control units such as EV inverter and battery charge control unit.
(1)
Accuracy to center value of (Min.+Max.)/2
1
R5106N
NO. EC-169-180222
SELECTION GUIDE
The detector threshold, the output type and the taping type for the ICs can be selected at the users’ request.
The selection can be made with designating the part number as shown below;
Product Name
R5106Nxx1∗-TR-#E
Package
SOT-23-6
Quantity per Reel
3,000 pcs
Pb Free
Yes
Halogen Free
Yes
xx : The detector threshold (-V
DET
) can be designated in the range from 1.5V(15) to 5.5V(55) in 0.1V steps.
∗
: Output type and pull-up resistor of INH pin
RESETB Output Type
A
Nch open drain
B
Nch open drain
C
CMOS
# : Quality Class
Operating Temperature Range
A
J
−40°C to 125°C
−40°C to 105°C
Pull-up Resistor of INH pin
Available
Not available
Available
Test Temp.
25°C, High
Low, 25°C, High
AEC-Q100
Grade1
Grade2
Series Selection
R5105N
Package
With INH pin (Inhibit)
2 clock input
With MR pin
(Manual Reset)
With SENSE pin
Remarks
No
No
C
D
pin and
C
TW
pin are
combined uses.
No
No
Yes
Yes
No
No
Operating
Supply Current
Voltage Range
11.5µA
1.5V to 6.0V
R5106N
R5107G
Yes
Yes
R5108G
SSOP-8G
R5109G
SOT-23-6
2
R5106N
NO. EC-169-180222
PIN DESCRIPTIONS
•
SOT-23-6
6
5
4
(mark side)
1
2
3
•
SOT-23-6
Pin No.
1
2
3
4
5
6
Symbol
SCK
INH
V
DD
RESETB
GND
C
T
Description
Clock Input Pin from Microprocessor
Inhibit Pin ("L": Inhibit the watchdog timer)
Power supply Pin
Output Pin for Reset signal of Watchdog timer and Voltage Detector.
(Output "L" at detecting Detector Threshold and Watchdog Timer
Reset.)
Ground Pin
External Capacitor Pin for Setting Reset and Watchdog Timeout
Periods and delay time of Voltage Detector
4
R5106N
NO. EC-169-180222
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
V
CT
V
RESETB
V
SCK
V
INH
I
RESETB
P
D
Tj
Tstg
Supply Voltage
Output Voltage
Input Voltage
Output Current
Junction Temperature
Storage Temperature Range
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent
damages and may degrade the life time and safety for both device and system using the device in the field.
The functional operation at or over these absolute maximum ratings are not assured.
Item
Voltage of C
T
Pin
Voltage of RESETB Pin
Voltage of SCK Pin
Voltage of INH Pin
Current of RESETB Pin
Rating
-0.3 to 7.0
-0.3 to V
DD
+ 0.3
-0.3 to 7.0
-0.3 to 7.0
-0.3 to 7.0
20
830
-40 to 150
-55 to 150
(Ta=25°C)
Unit
V
V
V
V
V
mA
mW
°C
°C
Power Dissipation
(1)
(SOT-23-6, JEDEC STD.51-7)
RECOMMENDED OPERATING CONDITIONS
Symbol
V
DD
Ta
Operating Voltage
Operating Temperature Range
R5106Nxx1x-TR-AE
R5106Nxx1x-TR-JE
Item
Rating
0.9 to 6.0
−40 to 125
−40 to 105
Unit
V
°C
°C
RECOMMENDED OPERATING CONDITIONS
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the recommended
operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. And
the semiconductor devices may receive serious damage when they continue to operate over the recommended
operating conditions.
(1)
Refer to
POWER DISSIPATION
for detailed information.
5
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